We really don't either, but keep trying. We had one on a nest but not in the hen house or lot and something got her and half the eggs. We keep 1 or 2 adults , keep getting more littles and they'll grow up to let out and then the bigs get killed or something seems. I just got 2 whites, 2 lavender...
We have Easter eggers, emeralds and sapphire, barred rock, Orpington buffs, silkies, idk what my older white one is . She was a hand me down from another farm and she's older.
I have multiple breeds of chickens and guinea and trying to figure out which breed is laying which eggs. I got a different brown egg with purple speckles . Never before got this before..